AbstractAn increasing body of evidence suggests that stress may modulate the response of an animal to toxicological challenge. The degree of stress inherent in the procedures comprising a fish LC50 study (OECD guidelines for the testing of chemicals, “Fish, Acute Toxicity Test” No. 203, adopted May 12, 1981) was assessed by measuring plasma cor...... hiện toàn bộ
Gisela de Aragão Umbuzeiro, Maria Inês Zanoli Sato, Maria Luisa Cristina, Letícia Coelho, Carlos Alberto Coimbrão, P. S. Sanchez, Maria Therezinha Martins, Renato Bonatelli
AbstractOrganic extracts of raw water from 11 water courses of São Paulo State, Brazil, were collected during one year bimonthly and tested for mutagenicity using the Ames test, with strains TA98 and TA100 of Salmonella typhimurium with and without metabolic activation. The samples were extracted with XAD2 resin and e...... hiện toàn bộ
AbstractChanges in hematological parameters and blood respiratory properties of Lates calcarifer in response to nitrite exposure were studied. Exposure to 10 mg · L−1 NO2‐N for 8 days resulted in significant increases in blood nitrite and methemoglobin contents. Total hemoglobin was reduced result...... hiện toàn bộ
AbstractThe ever‐increasing use of plastics for the packaging, wrapping, and transportation of goods is causing serious concern in regard to their environmental fate when they are carelessly discarded (visual pollution), or disposed off by dumping or by incineration.For this reason in the last few years in Italy legislation was introduced, specif i...... hiện toàn bộ
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